A journey across a landscape and time

Passing Place: The Fenlands, Flooding, and its Futures
On Sunday May 4th 2025, there will be a guided walk on the Fen Edge Trail from the village of Stretham to Stretham Old Engine, on the Old West River, and back. Stretham is on the bus route between Ely and Cambridge.
Working in partnership with curator and artist Shannon Best, we will consider the Fens in the context of changing sea levels and the consequent interplay between land and water, as part of the exhibition Joining Doggerland. The walk will also celebrate the upcoming publication of the Walk Guide for the Wilburton to Stretham part of the Trail.
See below for walk information (distance etc).
Places must be booked in advance – please contact us via our contact page or email us at info@cambsgeology.org.
Shannon Best
Passing Place – the Guided Walk
The guided walk will cover the last section of the Fen Edge Trail walk from Wilburton to Stretham. Starting in Stretham, on the Isle of Ely, the walk takes you to Stretham Old Engine on the banks of the Old West River and back to the village. A guided visit to the Engine, alongside the river, is included. Starting at 2 pm, the total time for the walk and visit will be about 3 hours. Walk length is about 1.5 miles to the Engine and the same back, so a total of 3 miles (at a relaxed pace). The walk is not strenuous but partly on footpaths through fields with uneven ground. Part of the walk is along a country road with no pavement. There is no charge for the guided walk (although donations to the Stretham Old Engine are welcome) but you must book in advance and places are limited. Children under 18 need to be accompanied by a responsible adult.




Guided Walks
We occasionally organise guided walks on the Trail. We hope to have at least a couple of these n 2025.
Join us for guided landscape heritage walks to discover the link between geology and local culture. All trips require booking. Places are limited on each trip. Everyone is welcome. Children (under 18) are welcome on all trips but must be accompanied by an adult. None of the walking is strenuous. Unfortunately, most walks are not wheelchair accessible – please check with us.
Each walk is a good introduction to the geology of the Cambridgeshire Fens, telling the story of tidal marshes in the Bronze Age, ancient river beds (roddons) and River Terrace Gravels of the Nene, Ouse and Cam from the ‘Ice Age’ and the Jurassic and Cretaceous seas that covered this part of the planet many millions of years ago. The walks also describe how local history has been affected by the landscape and how today’s villages, towns and cities are still closely linked to the origins of their location.
News 2025: Five new Walk Guides due soon
The following five new Walk Guides will be published soon.
3 Peterborough to Stanground
18 Landbeach to Waterbeach
28 Burwell to Wicken via Upware
31 Fordham to Isleham
37 Wilburton to Stretham with add on to Stretham Old Engine
Others will follow later in 2025 including:
6 Holme to Sawtry
19 Waterbeach to Milton via Horningsea
29 Wicken to Soham
38 Stretham to Ely via Little Thetford
Work is also progressing on:
5 Yaxley to Holme
14 Needingworth to St Ives
16 Swavesey to Willingham
17 Willingham to Cottenham
30 Soham to Fordham
43/44 Whittlesey






Find a Fen Edge Trail walk
See the Walks page for a list of all the Fen Edge Trail walks and download the Walk Guides that are already published.

Explore the Landscape Heritage
of the Cambridgeshire Fens
on a series of walks around the Fen Edge
The Fen Edge Trail takes you from the Lincolnshire border in the northwest of the county to the Suffolk border in the southeast, roughly following the ‘edge’ of the Fens (including the islands) where the land rises to 5 metres above sea level (the 5 m contour). We are gradually publishing a series of Walk Guides that take you on easy walks with an average distance of about 5 miles each, although some can be done in shorter sections or you can combine them to make a longer walk. The Walk Guides not only provide a map and directions but also describe the landscape, geology, history and wildlife along the route. Even if you do not wish to walk very far, you can read the Guides to find information on places of interest that can be visited in each area and the relevant webpage has links to organisations and sites that will help you discover more. The links between geology, ecology, history and present day life in the Fens reveal themselves and the more you look, the more you discover and the more fascinating it becomes!
Landscape Heritage
of the Cambridgeshire Fens
The Cambridgeshire landscape has a unique and fascinating history, from floods and glaciers to deep seas, tropical lagoons and even volcanoes! The Fen Edge is where low-lying fenland meets the surrounding ‘highland’, roughly where the land lies 5 metres above current sea level. This is thought to be the approximate maximum extent of the once extensive wetland. Sea level has, however, changed greatly at various times and the amount of freshwater flooding, from rivers and meres, has changed even more frequently, often not only from season to season but from year to year. Although the draining of the Fens is well-known, the story of how and when this happened is far more complex than is generally thought. The Fen Edge, including the many fen islands, provided drier land that was often a refuge from the marshes and it is, therefore, here where much of the history of the fens can be discovered by looking at the clues that remain.
As well as a rich cultural history, the Fens also have a fascinating, and often dramatic, landscape heritage, which is far less well-known but that continues, even today, to affect the lives of its inhabitants. From volcanoes to ‘ice ages’, and salt marshes to raised bogs, from Jurassic sea ‘monsters‘ to mammoths, and hippos to bog ‘oaks’, the complex story of how the fens were formed and what and who lived here, can be discovered by exploring the Fen Edge.
Partnership
The Fen Edge Trail is an initiative set up by the Cambridgeshire Geological Society as part of our Geosites work. Our partners in developing the Trail are several local organisations who are each exploring their local landscape to contribute to the project. we have wrked with a number of other local organisations on various walks. These include Fenlandia, the Great Fen, the Great Fen Heritage Group, Huntingdon and Peterborough Local Groups of the Wildlife Trust (Beds, Cambs and Northants), Warboys Archaeology Group, the Word Garden, the RSPB (Ouse Fen and Fen Drayton), Chatteris Museum, Discover Ramsey, Burwell Museum, Thorney Heritage Museum, Holme History, the Isleham Society and Wicken Fen (National Trust).
If you or your group would like to get involved in the Fen Edge Trail, please contact us. You may like to contribute information on local history, landscape, farming, wildlife or culture or you could help with designing one of the walks.
A ‘flyover’ of the geology of the Isle of Ely
For a fascinating ‘flyover’ of the geology of the Fens, see this virtual tour around the Isle of Ely (using GeoVisionary software) produced by Cranfield University for us. Read more about the Landscape and Geology of the Fens here.
The Sea in the Fens – the salt marshes and tidal creeks (roddons)
As part of Celebrate the Fens Day 2020, we published a new webpage of information on how the sea has left its mark on the the Fens in the form of roddons – ghost-like patterns of fossilised water channels that appear in many fenland fields. We would welcome any photos you have of apparent roddons, especially if they can also be seen in aerial photographs (such as on Google Earth). More here


If you would like to get involved in the project or receive our emailed updates and news, please contact us.
© Cambridgeshire Geological Society